中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
The application of zircon cathodoluminescence imaging, Th-U-Pb chemistry and U-Pb ages in interpreting discrete magmatic and high-grade metamorphic events in the North China Craton at the Archean/Proterozoic boundary

文献类型:期刊论文

作者Grant, Matthew L.1; Wilde, Simon A.1; Wu, Fuyuan1,2; Yang, Jinhui2
刊名CHEMICAL GEOLOGY
出版日期2009-04-15
卷号261期号:1-2页码:154-170
ISSN号0009-2541
关键词Archean/Proterozoic boundary North China Craton TTG rocks High-grade metamorphism Mantle plume
DOI10.1016/j.chemgeo.2008.11.002
文献子类Article
英文摘要Two distinct Late Neoarchean to Early Paleoproterozoic magmatic events are recognized at the northern margin of the Eastern Block of the North China Craton based on interpretation of zircon structure, cathodoluminescence signature, Th-U-Pb chemistry and age. The first event is represented by emplacement of the Chaihe trondhjemite and Xianjinchang tonalite with magmatic zircon core ages ranging from 2559-2553 +/- 7 Ma, respectively. These rocks experienced a subsequent high-grade metamorphic event, constrained by partial recrystallization of primary magmatic zircon and growth of new zircon rims, between 2517 and 2490 Ma. A second magmatic episode, generated by partial melting of crustal rocks during this metamorphic event. is represented by the Hongshilazi syenogranite with an age of 2502 +/- 11 Ma. The short time interval between initial magmatism and high-grade regional metamorphism signifies they were related to the same major tectonothermal event. When considered along with evidence of a similar sequence of events at this time similar to 800 km to the south in eastern Hebei and the previously-established similar to 2500 Ma age of granulite-facies metamorphism in mafic rocks across the craton, it is proposed that a large mantle plume developed beneath the North China Craton at the close of the Archean. (C) 2008 Elsevier B.V. All rights reserved.
WOS关键词EXPERIMENTAL HYDROTHERMAL CONDITIONS ; HIGH-PRESSURE METAMORPHISM ; EASTERN HEBEI PROVINCE ; ZONE SOUTHERN ALPS ; METAMICT ZIRCON ; TECTONIC EVOLUTION ; CRUSTAL EVOLUTION ; THERMAL EVOLUTION ; LIAONING PROVINCE ; CENTRAL AUSTRALIA
WOS研究方向Geochemistry & Geophysics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000265995200014
资助机构Australian Postgraduate Scholarship ; Australian Postgraduate Scholarship ; Australian Postgraduate Scholarship ; Australian Postgraduate Scholarship ; Australian Postgraduate Scholarship ; Australian Postgraduate Scholarship ; Australian Postgraduate Scholarship ; Australian Postgraduate Scholarship
源URL[http://ir.iggcas.ac.cn/handle/132A11/70372]  
专题中国科学院地质与地球物理研究所
通讯作者Wilde, Simon A.
作者单位1.Curtin Univ Technol, Dept Appl Geol, Perth, WA 6845, Australia
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
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Grant, Matthew L.,Wilde, Simon A.,Wu, Fuyuan,et al. The application of zircon cathodoluminescence imaging, Th-U-Pb chemistry and U-Pb ages in interpreting discrete magmatic and high-grade metamorphic events in the North China Craton at the Archean/Proterozoic boundary[J]. CHEMICAL GEOLOGY,2009,261(1-2):154-170.
APA Grant, Matthew L.,Wilde, Simon A.,Wu, Fuyuan,&Yang, Jinhui.(2009).The application of zircon cathodoluminescence imaging, Th-U-Pb chemistry and U-Pb ages in interpreting discrete magmatic and high-grade metamorphic events in the North China Craton at the Archean/Proterozoic boundary.CHEMICAL GEOLOGY,261(1-2),154-170.
MLA Grant, Matthew L.,et al."The application of zircon cathodoluminescence imaging, Th-U-Pb chemistry and U-Pb ages in interpreting discrete magmatic and high-grade metamorphic events in the North China Craton at the Archean/Proterozoic boundary".CHEMICAL GEOLOGY 261.1-2(2009):154-170.

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来源:地质与地球物理研究所

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